NeuroVision® Dynamic Screw Test Study

The purpose of this research study is to gather information about the NeuroVision System
(which is FDA cleared for this indication) during the placement of pedicle screws.
NeuroVision is a machine that monitors nerve activity during surgery and will alert the
surgeon if there are any nerve-related issues during screw placement. The use of nerve
monitoring is standard of care at most centers during spine surgery. The standard
monitoring for screws placed is performed after the screw is placed, to ensure it is well
positioned in the bone (if it is not, the screw may be removed and/or repositioned). The
NeuroVision System has a novel feature called "Dynamic Screw Test" that allows for that
monitoring to be performed as the screw is placed, rather than after the fact. This study
is being done to determine if this real-time monitoring of screw placement provides
beneficial additional information to the operating surgeon to prevent misplacement of screws
before it happens.